Accommodations in higher education were supposed to help disabled Americans enjoy the same opportunities as everyone else. No one should be kept from taking a class, for example, because they are physically unable to enter the building where it’s taught. Over the past decade and a half, however, the share of students at selective universities who qualify for accommodations—often, extra time on tests—has grown at a breathtaking pace. At the University of Chicago, the number has more than tripled over the past eight years; at UC Berkeley, it has nearly quintupled over the past 15 years.